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Use of intraoperative wavefront aberrometer to improve accuracy of IOL power calculations in post-LASIK and PRK eyes

Poster Details

First Author: H.Sandoval USA

Co Author(s):    K. Solomon              

Abstract Details


To review results to date in patients undergoing cataract surgery after refractive surgery with IOL calculations performed with an intraoperative wavefront aberrometer with a new generation of software.


Carolina Eyecare Physicians, Charleston, SC, USA


Eyes undergoing routine cataract extraction that had had previous LASIK or PRK were included in the analysis. All eyes had to have: aphakic and pseudophakic measurements performed using an intraoperative wavefront aberrometer (WaveTec Vision Systems, Aliso Viejo, CA) to confirm the refractive error, as well as the appropriate IOL power selection, and postoperative manifest refraction at least 3 weeks after cataract surgery.


A total of 50 eyes that had were included: 33 Myopic: and 17 hyperopic. The mean Absolute Value of the Prediction Error (MAVPE) in the myopic eyes was 0.41 ± 0.36 (Range 0.025 to 1.55) with 67% of eyes ±0.50 D of the target and 94% ±1.00 D. In the hyperopic eyes, the MAVPE was 0.54 ±0.41 (Range 0.01 to 1.265), with 53% ±0.50 D and 88% ±1.00 D.


Corneal changes that occur after refractive surgery make IOL calculations in these eyes challenging. The use of an intraoperative wavefront aberrometer is an alternative to improve outcomes and potentially to reduce the need for postoperative enhancements. FINANCIAL DISCLOSURE?: No

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